public class Test_4_2 {
    public static void main(String[] args) {
  /*      int a = Integer.MAX_VALUE;
       // System.out.println(a);
        double b = 1.1 * 1.1;
        System.out.println(b / 1.21);
       */
/*        String num = " My name is \"张三\" ";
        System.out.println(num);

        String rep = "\\t adcb\\t def";
        System.out.println(rep);*/

   /*     String num = "abcd:";
        int a = 10;
        int b = 20;
        System.out.println(a + b + num );//30abcd
        System.out.println(a + num + b  );//10abcd:20
        System.out.println(num + a + b);//abcd:1020*/

/*        {
            int a = 10;
            System.out.println(a);
        }
        System.out.println(a);*/
        //System.out.println("\\\"hellp=\\\" ");

    }
}
